As described, a database is a collection of data that is organized in a specific manner to enable easy access, management, and updating of information. Databases and ORMsĭatabases and ORMs (Object Relational Mappers) play a vital role in building web applications using Node.js. Hence they are a critical component of web application development in Node.js, and developers must have a good understanding of how to work with databases and how to use them efficiently to build robust applications. These features ensure that data is stored and accessed correctly and securely. In addition to storing data, databases also provide features such as data indexing, data integrity, and data security. A social media application may use a database to store user profiles, posts, and comments. For example, an eCommerce website may use a database to store product information, user data, and order details. They are particularly useful in web applications where data needs to be stored and retrieved quickly and efficiently. They allow developers to store, query, and manipulate data using various operations such as create, read, update, and delete (CRUD). Node.js provides various modules and packages to work with databases such as MySQL, PostgreSQL, MongoDB, and more. They are an essential part of building dynamic and scalable applications. In Node.js, databases are used to store and retrieve data for web applications.
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